Trouble with Viral Link Tracker

I signed up to Viral Link Tracker and I thought it had a free version? I do not know how to start it being a free member, do I need to sign up to thinkbigpublications? Im confused, the only thing that I see is to sign up under the 27 a month now, which I passed up for now to try it out first, and then I recieved an email with my password, but thats it. Anyone go through this company or person?